METHOD FOR ELIMINATION OF ASPHALTIC-RESIN-PARAFFIN DEPOSITIONS IN HIGH-TEMPERATURE WELLS

FIELD: oil production industry. SUBSTANCE: this relates to elimination of depositions in wells equipped with bottom-hole pump. According to method, air is injected into well, then injected into well is suspension of oxidizing hydrocarbon microorganisms in solution of nutritious agents with their sub...

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Hauptverfasser:	BORZENKOV IGOR' ANATOL'EVICH, CHERNIKOV VLADIMIR STEPANOVICH, LYSENKOV EVGENIJ ALEKSEEVICH, GLUMOV IVAN FOKANOVICH, UVAROV SERGEJ GENNAD'EVICH, KLIMOVETS VLADIMIR NIKOLAEVICH, BELJAEV SERGEJ SEMENOVICH, CHEPIK SERGEJ KONSTANTINOVICH, IBATULLIN RAVIL' RUSTAMOVICH
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	FIELD: oil production industry. SUBSTANCE: this relates to elimination of depositions in wells equipped with bottom-hole pump. According to method, air is injected into well, then injected into well is suspension of oxidizing hydrocarbon microorganisms in solution of nutritious agents with their subsequent circulation in well. Before injecting suspension of oxidizing hydrocarbon microorganisms in solution of nutritious agents, carried out is replacement of well liquid with surface liquid up to level of pump intake with its subsequent circulation in system of well - ground surface equipment until reaching optimal temperature needed for active life of oxidizing hydrocarbon microorganisms. Temperature of surface liquid must be lower than temperature of well liquid located in pump intake interval. EFFECT: higher efficiency. 1 dwgl